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We had already seen the internal circuit of 2*2*2 LED cube in the last blog. Here, we will make some modifications in the circuit to turn on LED 3 only.
If the circuit is done as given above, LED 3 will turn on. Positive terminal of 5V cell is connected to the anode terminals of LED 1, LED 2, LED 3 and LED 4 through a current limiting resistor of 1K. Negative terminal of 5V cell is connected to the cathode terminals of LED 3 and LED 7. From these two connections, we can conclude that the only LED which get both positive and negative voltages is LED 3. This will turn on LED 3.
We had already seen the internal circuit of 2*2*2 LED cube in the last blog. Here, we will make some modifications in the circuit to turn on LED 3 only.
If the circuit is done as given above, LED 3 will turn on. Positive terminal of 5V cell is connected to the anode terminals of LED 1, LED 2, LED 3 and LED 4 through a current limiting resistor of 1K. Negative terminal of 5V cell is connected to the cathode terminals of LED 3 and LED 7. From these two connections, we can conclude that the only LED which get both positive and negative voltages is LED 3. This will turn on LED 3.
| Continued in Next Part (Part 5) >>> |
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